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Schedule 4
2023 Laws not yet authenticated through a Commencement Order

Revised Laws of Saint Lucia (2023)

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Schedule 4

(Regulations 12, 13 and 14)

ACCURACY CLASSES AND LIMITS OF ERROR OF WEIGHING INSTRUMENTS

Table 1
Definition of the verification scale interval (e)
Type of instrumentAccuracy classMaximum load “Max”Value of the verification scale interval (e)
Graduatedclasses I, II, III and IIII—shall be equal to the scale interval (d)
Non-graduatedClass I SpecialFrom 100 mg to 1g both inclusive1mg
From 1g to 10g inclusiveMax/1000
above 100gMax/10 000
Class II HighFrom 1g inclusive to 5g exclusiveMax/1000
From 5g to 100g both inclusive5mg
From 100g to 200g both exclusiveMax/20 000
above 200gMax/20 000
Class III MediumFrom 20g to 100g both inclusive0.1g
From 100g to 1 kg both exclusiveMax/1000
From 1 kg to 2 kg both inclusive1g
above 2 kgMax/2000
Class IIII OrdinaryFrom 1 kg to 2 kg both inclusive5g
above 2 kgMax/400
Table 2
Definition of number of verification scale intervals and minimum capacity of weighing instruments
Accuracy ClassVerification Scale interval (e)Number of verification Scale intervals (n), MinMinimum Capacity Min
Special Class Ie ≥ 0.001 g50 000100 e
High Class II0.05 g ≥ e ≥ 0.001 g10020 e
e ≥ 0.1 g500050 e
Medium 2 g ≥ e ≥ 0.1 g10020 e
Class IIIe ≥ 5 g50020 e
Ordinarye ≥ 5 g10010 e
Class IIII
Note – Number of verification scale intervals =
Table 3
Limits of error of weighing instruments
Maximum permissible error on initial verificationLoad range
Class IClass IIClass IIIClass IIII
± 0.5e0 to 50 000 e both inclusive0 to 5000 e both inclusive0 to 500 both inclusive0 to 50 e both inclusive
± 1 e50 000 e to 200 000 e inclusive5000 e to 20 000 e inclusive500 e to 2000 e inclusive50e to 200e inclusive
± 1.5eover 200 000 e20 000 e to 100 000e inclusive2000 e to 10 000 e inclusive200 e to 1000 e inclusive
e – verification scale interval in mass units

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